MRF A755 ACTO flight: Airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft
The Meteorological Research Flight (MRF) was a Met Office facility, which flew a well-instrumented C-130 Hercules aircraft for atmospheric research purposes.
This dataset contains airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft flight A755 for the Atmospheric Chemistry and Transport of Ozone in the upper troposphere-lower stratosphere (UTLS) (ACTO) campaign. The flight was located over the North Atlantic.
The purpose of the flight was to investigate a dry slot behind a cold front to the North West of Scotland. Many interesting filaments of air were sampled. However, distinct 'stratospheric' filaments were not observed until the end of the flight.
After the initial end of science an interesting filament was sampled with high ozone (around 130ppb). We retraced our steps in order to fly through once more at science speed. This filament, at FL150, was further east than the forecast 'stratospheric air' filaments.
When the air of stratospheric origins was sampled it was found to have high ozone / low relative humidity as expected but it should be noted that there was also high PAN and slightly elevated black carbon.
The instruments generally worked well. The FWVS had to have the odd adjustment in flight and then found to maintain a good correlation with the GE; the peroxide began to loose flow at around FL245 and the CO was found to have a small leak of cabin air, which was corrected by 13:50. The CO was also found to be influenced by the flow through the PSAP. The CO did not show much structure during the flight until near the end when the air with stratospheric characteristics was observed.
Meteorology
An anticyclone was centred to the east of the North Sea and a waving front positioned to approximately along 7 west. The frontal cloud was quite apparent on the way to the operational area. However, a flight level (FL140) was found above most of the cloud, for the NOxy calibrations. Once past the frontal cloud there was little cloud in the operational area: just some thin cirrus.
Default
Identification info
- Metadata Language
- English (en)
- Dataset Reference Date ()
- 2006-12-10T03:09:18
- Dataset Reference Date ()
- 2006-12-10T03:09:18
- Identifier
- NCAS British Atmospheric Data Centre (NCAS BADC) / 1e4cb62947da412f8629de448c276f47
- Maintenance and update frequency
- notPlanned
- Update scope
- dataset
- Keywords
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- UTLS
- ACTO
- Chemistry
- temperature
- pressure
- wind
- GEMET - INSPIRE themes, version 1.0 ()
-
- atmospheric conditions
- Limitations on Public Access
- otherRestrictions
- Other constraints
- Public data: access to these data is available to both registered and non-registered users.
- Use constraints
- otherRestrictions
- Spatial representation type
- grid
- Topic category
-
- Climatology, meteorology, atmosphere
- Begin date
- 2000-05-14T10:01:35
- End date
- 2000-05-14T10:01:35
- Code
- WGS 84
Distribution Information
- Data format
-
-
Data are ASCII formatted
()
-
Data are ASCII formatted
()
- Resource Locator
-
CEDA Data Catalogue Page
Detail and access information for the resource
- Resource Locator
-
DOWNLOAD
Download Data
- Resource Locator
-
CEDA Data Catalogue Page
Detail and access information for the resource
- Resource Locator
-
DOWNLOAD
Download Data
- Quality Scope
- dataset
Report
- Dataset Reference Date ()
- 2010-12-08
- Statement
- Data collected by instruments on-board the MRF C-130 during flight A755. Data acquired by BADC for archiving during the ACTO project.
Metadata
- File identifier
- 1e4cb62947da412f8629de448c276f47 XML
- Metadata Language
- English (en)
- Character set
- 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646
- Parent identifier
- UTLS-Ozone ACTO: Met Research Flight (MRF) C-130 Hercules aircraft atmospheric chemistry measurements and model output collection 7ca95b35d9e378c10343f2730a880549
- Resource type
- dataset
- Metadata Date
- 2024-04-26T00:31:00
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3